Process for producing the alloy of titanium with copper.



' UNITED' STATES PATENT OFFICE.

AUGUSTE ROSSL, NIAGARA FALLS, NEW YORK, ASSIGNOR TO THE TITANIUM ALLOY MANUFACTURING COMPANY, OF NEW YORK. N. Y., A CORPORATION OF MAINE.

PROCESS FOR PRODUCING THE ALLOY OF TITANIUM WITH COPPER.

No Drawing.

Specification of Letters Patent.

Application filed February 4, 1911.

Patented A r. 9, 1912.

Serial No. 606,455.

T 0 all whom it may concern:

Be it known that I, AUcUsrE J. Rossi, a citizen of the United States, and a resident of Niagara Falls, in the county of Niagara and State of New York, have invented certain new and useful Improvements in Proceases for Producing the Alloy of Titanium with Copper, of which the following is a specification.

My present invention relates to a novelmethod for producing the said alloy. and its object is to provide such a method whereby the .said alloy may be produced without recourse to some of the agents and operations hitherto deemed desirable, if not essential,'-

and the attainment of a resulting product free from formercharacteristics of such alloys and possessing other characteristics not found in the latter.

Letters Patent No. 700,244 were granted to me May 20, 1902, reissued No.- 12,754, March 17, 1908, for the alloy of titanium and copper and my then method of producing same by aluminium reduction of titanium oxid. The product of my said patented process is, when thereby manufactured on an industrial scale, often found to contain aluminiumand other resultants to such ex- .tent as to render it comparatively unde- 80" sirable for'some specific uses, though increasing its utilityfor others. Elimination of such residuals may require exceptional care and skill in operation, besides employment of agents, the presence or' effects of which may sometimes undesirably affect particular products into which the alloy is incorporated. On the other hand, for example, a content of some small amount of carbon in alloys of titanium and copper may prove not only harmless for certain applications but even useful for others. My researches have now disclosed that nohvithstamling the peculiar characteristics and behavior of copper in presence of carbon and titanium oxid under high temperatures, it is nevertheless possible to produce its alloy with titanium by means of carbon reduction of oxygen compounds of titanium under conditions hereinafter described, and that the resulting product, notwithstanding its inferiority to some extent, in certain particulars, to that produced by my said previously patented method, will, is-ordinarily produced on industrial scales, be free from some characteristics imparted by said method and possess others imparting thereto special value -for specific uses.

The process of my present invention may be practiced as fo1lows:-In a. container provided with means for heating the charge to required temperature, as for example in the crucible of an electric furnace of any of the. now well known forms, such for instance. as illustrated and described in Letters Patent. No. 802,941, granted to me 00- tober 24, 1905, I produce a bath of molten copper, either by pouring into the crucible the copper previously molten, in any conrenient manner, or by introducing into the crucible solid copper and melting same therein by turning 1011 the current. Into said molten bath I introduce a mixture, preferably intimate, of carbon and oxid of titanium, and continue the current until the temperature of the entire charge has been copper to constitute the desired alloy, which may then be tapped out and resulting slugs therefrom eliminated in any convenientmanner, as will be understood by those skilled in the metallurgical art. he required bath of molten copper may also be 5 produced by char ing into the crucible a. mixture, preferab y intimate, of oxid of copper or other compound of copper capable of reduction by carbon, and oxid of titanium and carbon. turned on us before will result first in formation of the required bath of molten copper and subsequently in reduction of the t-itunium oxid, liberation of metallic titanium and production of. the alloy as before. producing said alloy of titanium and copper, by the process of mv present invention,- m operations conducte on an industrial scale, it is preferable; if not indispensable,

owing to the characteristic properties. 100

copper under the conditions mentioned, to inter-pose between the atmosphere and the charge a liquid coutln" com rising molten neutral substances, such as s ags, by supcrnnposmg and maintaining such coating over the charge, as, for example, described in my The current being Letters Patent No. 877,518,

granted J anuary 28, 1908. It. will be understood, of course, that the respective proportions of .cupric and titanic material employed, as

1 as of carbon, will be regulated according to the proportions of copper, titanium and carbon, if any, desired in the resulting product. The calculations and--ressslting proportionin s retiluired to accomplish this will be readi y un erstood by metallurgists without further explanation here.

As a matter of ordinary industrial pract-icethe resulting product of the aforesaid methods of my present invention may contain a small quantity of carbon say 1% to 5% or thereabout, which may prove of advantage for some purposes, or, at all events, not detrimental, as for exampe when said product, or coppfr thereby purified, as per letters Patent 0. 905,232, granted to me Dec. 1, 1908, is used in electrical conductors, the presence of some carbon in such instances being less objectionable than that of some aluminium,to be, as aforesaid, expected in the product of my previously patented process unless particular care and skill are exercised in its operation.

What 1 claim as new and desire to secure by Letters Patent is the following, rim-- 1. The method of roducing the binary alloy of titanium \vitcopper, which comprises charging together oxid of copper, oxid of titanium and carbon, andralsing the tempera-wra s:flieiently to produce a bath oi: molten copper, and reduction also of the titanium oxld, substantially as described.

2. The method of )roducing the binary alloy of .titanium with copper, which comprises reducin titanium oxid by carbon in a bath of mo ten copper, substantially as described.

3. As a new article an alloy, or compound, consisting predominantly of titanium and copper alloyed together and containing also some car on.

4. As a new article an alloy, or compound, consisting predominantly of titanium and copper alloyed together and containing also carbon in excess of 1%.

AUGUSTE J. ROSST.

Witnesses:

WALTER D. EDMONDS, Pmur G. Peon. 

